▎ 摘　　要

NOVELTY - Preparing magnetic fluorescent graphene, comprises grinding graphite flakes and stainless steel needles magnetically to obtain magnetic graphene, oxidizing magnetic graphene, concentrated nitric acid and concentrated sulfuric acid to obtain mixed solution, then ultrasonicating the mixed solution and calcining to obtain magnetic graphene oxide, dissolving the magnetic graphene oxide in deionized water, suction filtering, and dialyzing to obtain magnetic fluorescent graphene solution, and then freeze-drying the magnetic fluorescent graphene solution to obtain final product. USE - The method is useful for preparing magnetic fluorescent graphene. ADVANTAGE - The preparation method: is simple; does not produce too much waste acid; has less pollution to the environment; does not need to add any magnetic material to react in the process of obtaining magnetism; and does not need to add fluorescent material to obtain fluorescence.